Bolt-type filter high-voltage test tool clamp

By designing a bolt-type filter high-voltage test fixture with a retractable clamping block and elastic buckle, the problem of alligator clips easily falling off was solved, achieving stable clamping and safe testing, and improving testing efficiency and safety.

CN223857253UActive Publication Date: 2026-01-30BEIJING YUAN LIU HONG YUAN ELECTRONIC TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202520161362.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-23
Publication Date
2026-01-30
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

In the existing technology, during the high-voltage testing of AC three-phase bolt-type filters, the alligator clips are prone to falling off, causing connection interruption, damage to the bolts, and safety hazards.

Method used

A bolt-type high-voltage test fixture for filters is designed, which adopts a telescopic first clamping block and a second clamping block, along with an elastic buckle and conductive foam, to achieve stable clamping and fixation, reduce contact resistance, and enhance safety.

Benefits of technology

This technology enables stable clamping of bolt-type filters, avoids connection interruptions, shortens the testing cycle, protects bolt-type terminals, reduces safety hazards, and improves the accuracy and safety of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a bolt-type filter high-voltage test tool clamp which comprises a first clamping block and a second clamping block which are telescopically connected through a telescopic piece, the first clamping block and the second clamping block are matched to form a clamping groove, and a bolt-type filter is clamped in the clamping groove; the outer side end of the first clamping block and the outer side end of the second clamping block are respectively provided with an elastic buckle part, and the number and spacing of the elastic buckle parts are matched with those of bolt type terminals of the bolt type filter. The elastic buckling parts lead out terminals outwards, and the bolt type terminals are pressed in the corresponding elastic buckling parts. The device is simple in structure and convenient to operate, can meet the clamping requirements of bolt-type filters of different sizes, thoroughly changes the situation that a traditional alligator clip is easy to fall off, effectively avoids connection interruption, and greatly shortens the test period; and meanwhile, the appearance damage to the bolt type terminal is avoided, the potential safety hazard caused by poor connection is reduced, and the safety of operators is guaranteed.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bolt type filter clamp technical field, specifically related to a bolt type filter high pressure test frock clamp. BACKGROUND

[0002] In the current three-phase bolt type filter electrical performance test, due to considering that the voltage of three-phase bolt type filter withstand voltage test is higher, small alligator clip is often used as frock clamp in the test process, and the bolt type terminal of bolt type filter is clamped to realize the connection with external test instrument.

[0003] However, this connection mode still has various defects in the use process: on the one hand, the bolt type terminal is clamped by alligator clip, and the clamp is easy to fall off, which leads to the problem of connection interruption, greatly prolongs the test cycle; on the other hand, the bolt type terminal is clamped by alligator clip frequently, which also causes appearance damage to the bolt, and also brings certain safety hazards to the operator. Therefore, a bolt type filter high pressure test frock clamp is urgently needed. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model provides a bolt type filter high pressure test frock clamp.

[0005] The utility model discloses a bolt type filter high pressure test frock clamp, which comprises: first clamping block and second clamping block connected through telescopic piece, a clamping groove is formed between the first clamping block and the second clamping block, and the bolt type filter is clamped in the clamping groove.

[0006] The outer side end of the first clamping block and the outer side end of the second clamping block are respectively provided with elastic buckle parts, and the number and spacing of the elastic buckle parts are matched with the bolt type terminal of the bolt type filter.

[0007] The elastic buckle part leads out a terminal, and the bolt type terminal is pressed in the corresponding elastic buckle part.

[0008] As a further improvement of the utility model, one half recess is formed in the end of the first clamping block and the second clamping block respectively, the top and the end of the two half recesses are open ends, and the two half recesses form the clamping groove.

[0009] The first clamping block and the second clamping block form mounting parts for mounting the elastic buckle parts at the ends away from each other, and the elastic buckle parts are mounted in the mounting parts on the corresponding side respectively.

[0010] As a further improvement of the utility model, the installation part is formed by the inner recess of the top of the end of the first clamping block and the second clamping block away from each other, and the installation part is divided into three installation grooves by the partition plate; one elastic buckle part is installed in each installation groove, and a through hole is arranged at the bottom of each installation groove for leading out the wiring end of the elastic buckle part.

[0011] As a further improvement of the utility model, the elastic buckle part comprises a U-shaped mounting seat, the U-shaped mounting seat is installed in the corresponding installation groove, and the external lead wire of the bottom of the U-shaped mounting seat leads out outward after passing through the through hole;

[0012] triangular elastic sheet structures are symmetrically installed in the U-shaped mounting seat, the tips of the two elastic sheet structures are close to each other, the surfaces of the elastic sheet structures are provided with conductive foam, and the bolt type wiring end is arranged in the two elastic sheet structures and is in contact with the conductive foam.

[0013] As a further improvement of the utility model, the telescopic piece comprises a telescopic strip;

[0014] a plurality of slide grooves are symmetrically arranged at the bottom of the end of the first clamping block and the second clamping block away from each other, the telescopic strip is arranged in a symmetric slide groove in a telescopic mode, and the two ends of the telescopic strip are provided with convex parts for preventing the telescopic strip from being pulled out of the slide groove.

[0015] As a further improvement of the utility model, the bottom of the first clamping block and the second clamping block is provided with conductive foam, and support tables are arranged at the two corner edges of the bottom of the two ends of the first clamping block and the second clamping block away from each other.

[0016] The support tables are arranged to have a height higher than the height of the telescopic piece.

[0017] As a further improvement of the utility model, the first clamping block and the second clamping block are provided with ground wire leading-out ends at the end of the end away from each other.

[0018] The ground wire leading-out ends on the two sides are connected with the conductive foam at the bottom of the first clamping block and the second clamping block.

[0019] As a further improvement of the utility model, the adjustment range of the first clamping block and the second clamping block in the length direction is 110-140mm.

[0020] Compared with the prior art, the utility model has the beneficial effects that:

[0021] This invention features a simple structure and convenient operation. By incorporating a telescopic connection between the first and second clamping blocks, it can accommodate bolt-type filters of varying sizes, ensuring the filters remain firmly secured throughout the testing process. The elastic locking mechanisms at both ends also provide stable clamping and fixation of the bolt-type filter's terminals, completely eliminating the problem of traditional alligator clips easily detaching, effectively preventing connection interruptions, and significantly shortening the testing cycle. Simultaneously, it avoids cosmetic damage to the bolt-type terminals, reduces safety hazards caused by poor connections, and ensures operator safety.

[0022] This invention optimizes electrical connections and reduces contact resistance by incorporating conductive foam into the elastic buckle portion at the bottom of the first and second clamping blocks. This also improves the accuracy of test results. Furthermore, the inclusion of a ground wire lead further enhances safety. Attached Figure Description

[0023] Figure 1 This is a top-view axonometric view of a bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention;

[0024] Figure 2 This is a bottom-view axonometric view of the bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention;

[0025] Figure 3 This is a front view of the structure of a bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention;

[0026] Figure 4 This is a side view of the structure of a bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention;

[0027] Figure 5 This is a bottom view of the structure of a bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the first clamping block and the second clamping block of a bolt-type filter high-voltage test fixture disclosed in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of the elastic buckle part of a bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention.

[0030] Figure 8 This is a schematic diagram showing the first clamping block and the second clamping block of the bolt-type filter high-voltage test fixture disclosed in one embodiment of the present invention retracted into place;

[0031] Figure 9A first clamping block and a second clamping block of another angle of the bolt type filter high pressure test tool clamp disclosed by an embodiment of the utility model shrink to the position schematic view;

[0032] Figure 10 The assembly schematic view of the bolt type filter of the bolt type filter high pressure test tool clamp disclosed by an embodiment of the utility model.

[0033] In the drawing,

[0034] 1, telescopic piece; 11, telescopic strip; 111, convex part; 12, sliding groove; 2, first clamping block; 3, second clamping block; 4, elastic buckle part; 41, U-shaped mounting seat; 42, external lead; 43, elastic sheet structure; 44, conductive foam; 5, clamping groove; 51, first half recess; 52, second half recess; 6, mounting part; 61, partition; 62, mounting groove; 63, through hole; 7, ground wire lead-out end; 8, support table; 100, bolt type filter. DETAILED DESCRIPTION

[0035] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the utility model.

[0036] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, so it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0037] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0038] The utility model makes further detailed description in connection with the drawings below:

[0039] As Figures 1-5 As shown in the utility model discloses a kind of bolt formula filter high voltage test tool fixture, including telescopic piece 1, first clamping block 2 and second clamping block 3, wherein first clamping block 2 and second clamping block 3 are connected by telescopic piece 1, first clamping block 2 and second clamping block 3 are cooperatively formed clamping groove 5, bolt formula filter 100 is clamped in clamping groove 5;The outside end of first clamping block 2 and the outside end of second clamping block 3 are respectively provided with elastic buckle part 4, the setting number and pitch of elastic buckle part 4 are adapted to bolt formula filter 100 bolt formula terminal;Elastic buckle part 4 leads out terminal, bolt formula terminal is pressed in corresponding elastic buckle part 4.

[0040] In the embodiment, simple structure, convenient operation, by setting telescopic piece 1 connection's first clamping block 2 and second clamping block 3, can meet the clamping demand of bolt formula filter 100 of different sizes, guarantee in test whole bolt formula filter 100 is firmly fixed;The setting of both ends elastic buckle part 4 also realizes the stable clamping and fixed of bolt formula filter 100 bolt formula terminal, completely changes the condition that traditional crocodile clip is easy to fall off, effectively prevents connection interruption, greatly shortens test cycle. Meanwhile, avoid the appearance damage to bolt formula terminal, reduce the security risk caused by bad connection, guarantee the safety of operating personnel.

[0041] Specifically:

[0042] As Figure 6 As shown in the above embodiment, preferably, first clamping block 2 is provided with first half-groove 51 close to one end of second clamping block 3, second clamping block 3 is provided with second half-groove 52 close to one end of first clamping block 2, the top of first half-groove 51 and second half-groove 52 and the end close to each other are all open end, and first half-groove 51 and second half-groove 52 cooperatively form clamping groove 5;The end of first clamping block 2 and second clamping block 3 away from each other respectively forms mounting part 6 for installing elastic buckle part 4, and multiple elastic buckle parts 4 are respectively installed in mounting part 6 on the corresponding side.

[0043] In the above embodiment, preferably, mounting part 6 is formed by the inner recess of the top of the end of first clamping block 2 and second clamping block 3 away from each other, and mounting part 6 is separated into three mounting grooves 62 by partition plate 61;Each mounting groove 62 is communicated with clamping groove 5, one elastic buckle part 4 is installed in each mounting groove 62, and through hole 63 for leading out terminal of elastic buckle part 4 is provided in the bottom of each mounting groove 62.

[0044] As Figure 7As shown in the above embodiment, preferably, the elastic buckle part 4 comprises a U-shaped mounting seat 41, an external lead 42, a spring structure 43 and conductive foam 44, wherein the U-shaped mounting seat 41 is mounted in the corresponding mounting groove 62, the external lead 42 at the bottom of the U-shaped mounting seat 41 is led outwards after passing through the through hole 63; the spring structure 43 in a triangular shape is symmetrically mounted on both sides of the U-shaped mounting seat 41, the tips of the two spring structures 43 are close to each other to form a gap for the bolt-type terminal of the bolt-type filter 100 to be pressed into; the conductive foam 44 is arranged on the surface of the spring structure 43 and the inner bottom surface of the U-shaped mounting seat 41; the bolt-type terminal is pressed into the two spring structures 43 and is in contact with the conductive foam 44.

[0045] In this embodiment, by arranging the conductive foam 44 on the elastic buckle part 4, the electrical connection is optimized, the contact resistance is reduced, the accuracy of the test result is improved, and the safety is further enhanced by the arrangement of the ground lead-out end; at the same time, the arrangement of the conductive foam 44 can increase the contact area with the bolt on one hand, and can effectively prevent the appearance damage to the bolt-type terminal on the other hand, unlike the form of the alligator clip.

[0046] In this embodiment, the external lead 42 at the bottom of the U-shaped mounting seat 41 can be directly connected with the test instrument in actual use, until the line test is completed, and then the test instrument is replaced, so that the test time is greatly saved and the safety of the test personnel is ensured.

[0047] As shown in the above embodiment, preferably, the elastic buckle part 4 comprises a U-shaped mounting seat 41, an external lead 42, a spring structure 43 and conductive foam 44, wherein the U-shaped mounting seat 41 is mounted in the corresponding mounting groove 62, the external lead 42 at the bottom of the U-shaped mounting seat 41 is led outwards after passing through the through hole 63; the spring structure 43 in a triangular shape is symmetrically mounted on both sides of the U-shaped mounting seat 41, the tips of the two spring structures 43 are close to each other to form a gap for the bolt-type terminal of the bolt-type filter 100 to be pressed into; the conductive foam 44 is arranged on the surface of the spring structure 43 and the inner bottom surface of the U-shaped mounting seat 41; the bolt-type terminal is pressed into the two spring structures 43 and is in contact with the conductive foam 44. Figure 2 , Figure 5 As shown in the above embodiment, preferably, the elastic buckle part 4 comprises a U-shaped mounting seat 41, an external lead 42, a spring structure 43 and conductive foam 44, wherein the U-shaped mounting seat 41 is mounted in the corresponding mounting groove 62, the external lead 42 at the bottom of the U-shaped mounting seat 41 is led outwards after passing through the through hole 63; the spring structure 43 in a triangular shape is symmetrically mounted on both sides of the U-shaped mounting seat 41, the tips of the two spring structures 43 are close to each other to form a gap for the bolt-type terminal of the bolt-type filter 100 to be pressed into; the conductive foam 44 is arranged on the surface of the spring structure 43 and the inner bottom surface of the U-shaped mounting seat 41; the bolt-type terminal is pressed into the two spring structures 43 and is in contact with the conductive foam 44.

[0048] In the above embodiment, preferably, the plurality of slide grooves 12 are arranged at intervals to form a channel for the telescopic strip 11 to slide, and at the same time, the telescopic direction of the telescopic strip 11, the first clamping block 2 and the second clamping block can be limited and guided.

[0049] In the above embodiment, preferably, the bottom of the first clamping block 2 and the second clamping block is provided with conductive foam, and the two corners at the bottom of the two ends of the first clamping block 2 and the second clamping block are respectively provided with a support table 8; in this embodiment, the support table 8 is arranged to be higher than the height of the telescopic part 1, which can effectively ensure the stability of the first clamping block 2 and the second clamping block 3.

[0050] In the above embodiment, preferably, both the ends of the first clamping block 2 and the second clamping block 3 that are far apart are provided with ground wire leads 7. In this embodiment, the ends of the first clamping block 2 and the second clamping block 3 that are far apart are provided with through holes drilled through them. Two wires pass through the through holes and are connected to the conductive foam at the bottom of the first clamping block 2 and the second clamping block 3 to form an effective ground. During testing, the testing instrument can be connected to the product casing (ground) through the wires.

[0051] In the above embodiments, preferably, the adjustment range of the first clamping block 2 and the second clamping block 3 in the length direction is 110-140mm.

[0052] like Figures 8-9 As shown, in the above embodiment, preferably, the first clamping block 2 and the second clamping block 3 can be fitted together by the guide of the telescopic strip 11 to meet the placement requirements of the small bolt-type filter 100.

[0053] like Figure 10 As shown, in the above embodiment, preferably, in actual use, the bolt filter 100 is placed from top to bottom in the clamping groove 5, and the bolt terminals on both sides of the bolt filter 100 are pressed from top to bottom into the two spring structures 43 of the corresponding elastic buckle part 4, and the bolt terminals are effectively covered by the conductive foam 44 located on the bottom surface of the spring structure 43 and the U-shaped mounting base 41.

[0054] How to use this embodiment:

[0055] 1. Adjust the distance between the first clamping block 2 and the second clamping block 3 by means of the telescopic bar 11 to meet the clamping requirements of the bolt-type filter 100 under test;

[0056] 2. Press the bolt-type filter 100 to be tested into the clamping groove 5 from top to bottom, and press the bolt-type leads at both ends of the bolt-type filter 100 (here, the leads on one side are defined as leads 1, leads 2, and leads 3) into the corresponding elastic buckle parts 4.

[0057] 3. Withstand voltage line-to-line test:

[0058] 31. Place the testing device on the table, connect the lead-out terminals 1 and 2 of the tooling fixture to the testing equipment, and connect a discharge resistor device in series between the testing equipment and the tooling fixture; and protect the tooling fixture with an external protective cover.

[0059] 32, open the test device, after the test, the bolt filter 100 discharge treatment, open the protective cover, replace the bolt filter 100, repeat the above steps, until the test is complete all bolt filter 100 lead-out end 1 and lead-out end 2 voltage test;

[0060] 33, adjust the fixture lead-out end, until the completion of all bolt filter 100 lead-out end 1 and lead-out end 3, lead-out end 3 and lead-out end 2 test;

[0061] 4, voltage line-ground test:

[0062] 41, the test device is placed on the desktop, the fixture lead-out end 1, lead-out end 2, lead-out end 3 is tied together with the test device, the fixture ground lead-out end 7 and the test device are connected; discharge resistance is connected in series between the test device and the fixture; and the fixture is protected by the external protective cover;

[0063] 42, open the test device, after the test, the bolt filter 100 discharge treatment, open the protective cover, replace the bolt filter 100, repeat the above steps, until the completion of all bolt filter 100.

[0064] The above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A bolted filter high voltage test fixture clamp, characterized by, The utility model relates to a bolt filter clamp, including: First clamping block (2) and second clamping block (3) are connected through telescopic piece (1), cooperation is formed with the first clamping block (2) and the second clamping block (3) between clamping groove (5), and the bolt filter (100) is clamped in the clamping groove (5); The outside end of the first clamping block (2) and the outside end of the second clamping block (3) are respectively provided with elastic buckle part (4), and the number and interval of the elastic buckle part (4) are adapted to the bolt terminal of the bolt filter (100); The elastic buckle part (4) leads out the terminal, and the bolt terminal is pressed in the corresponding elastic buckle part (4).

2. The bolted filter high voltage test fixture clamp of claim 1, wherein, The bottom of the first clamping block (2) and the second clamping block (3) are provided with conductive foam, and the two corners of the bottom of the two ends of the first clamping block (2) and the second clamping block (3) are respectively provided with support table (8); The setting height of the support table (8) is higher than the height of the telescopic piece (1).

3. The bolted filter high voltage test fixture clamp of claim 2, wherein, The utility model relates to a bolt filter clamp, including:

4. The bolted filter high voltage test fixture clamp of claim 3, wherein, First clamping block (2) and second clamping block (3) are connected through telescopic piece (1), cooperation is formed with the first clamping block (2) and the second clamping block (3) between clamping groove (5), and the bolt filter (100) is clamped in the clamping groove (5); The outside end of the first clamping block (2) and the outside end of the second clamping block (3) are respectively provided with elastic buckle part (4), and the number and interval of the elastic buckle part (4) are adapted to the bolt terminal of the bolt filter (100); 5. The bolted filter high voltage test fixture clamp of claim 1, wherein, The elastic buckle part (4) leads out the terminal, and the bolt terminal is pressed in the corresponding elastic buckle part (4). The bottom of the first clamping block (2) and the second clamping block (3) are provided with conductive foam, and the two corners of the bottom of the two ends of the first clamping block (2) and the second clamping block (3) are respectively provided with support table (8); 6. The bolted filter high voltage test fixture clamp of claim 1, wherein, The setting height of the support table (8) is higher than the height of the telescopic piece (1). The utility model relates to a bolt filter clamp, including: First clamping block (2) and second clamping block (3) are connected through telescopic piece (1), cooperation is formed with the first clamping block (2) and the second clamping block (3) between clamping groove (5), and the bolt filter (100) is clamped in the clamping groove (5); The outside end of the first clamping block (2) and the outside end of the second clamping block (3) are respectively provided with elastic buckle part (4), and the number and interval of the elastic buckle part (4) are adapted to the bolt terminal of the bolt filter (100); The elastic buckle part (4) leads out the terminal, and the bolt terminal is pressed in the corresponding elastic buckle part (4). The bottom of the first clamping block (2) and the second clamping block (3) are provided with conductive foam, and the two corners of the bottom of the two ends of the first clamping block (2) and the second clamping block (3) are respectively provided with support table (8); The setting height of the support table (8) is higher than the height of the telescopic piece (1).

7. The bolted filter high voltage test fixture clamp of claim 6, wherein, The first clamping block (2) and the second clamping block (3) are provided with a ground wire leading end (7) at the end away from each other. The ground wire leading ends (7) on both sides are connected with the conductive foam at the bottom of the first clamping block (2) and the second clamping block (3) respectively.

8. The bolted filter high voltage test fixture clamp of claim 1, wherein, The adjustment range of the first clamping block (2) and the second clamping block (3) in the length direction is 110-140mm.